Means for holding together parts having telescopic engagement



Feb. 6, 1940. c. L. WINGARD 2,189,644

MEANS FOR HOLDING TOGETHER PARTS HAVING TELESCOPIC ENGAGEMENT I Filed NOV. 3, 1937 3 Sheets-Sheet l gwucmhvb UL. Win/yard.

Feb. 6, 1940. c. L WINGARD MEANS FOR HOLDING TOGETHER PARTS HAVING TELESCOPIC ENGAGEMENT Filed NOV. 3, 1937 3 Sheets-Sheet 2 m\\\\\;\m\\\\\\ m Oma m u u U *1; ww

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Feb. 6, 1940. c. 1.. WINGARD MEANS FOR HOLDING TOGETHER PARTS HAVING TELESCOPIC ENGAGEMENT Filed Nov. 3, 1937 3 Sheets-Sheet 3 E1115.

6 'M 6 e A9 a. Z. Wz njar d 21A :furtherobject .is .to. provide a construction in Patented Feb. 6, 1940 A Qumran :LSTAQTES -PA-TE NT OFFICE &MEANS.FOR.;HOLDINGE TOGETHER PARTS HAVING TELESCOPIC ENGAGEMENT I :r-lMy.;invention relates; tomeans for securing to .tgether-rtwotparts which-..have.:a:.telescopic or male candriernale..engagementwith one. anotherfcr 'Cthe :zpnnpose :of preventing v:these parts from being v.:;s1eparat.ed..zorypulled apartrunder conditions: of gusaazahd/or fromxrotatingone with respect to theiotheron :theirjoint axis. l

.e'Thepresent invention has for. an objectto sim- -plify;.the. construction shown .and described in n-myj Patent No. 1,903,353, 1 issued .April 4, 1933.

ewhich thexlocking key .(or keys, ifmore than one ;is.-wprovided) may; gravitate to its'f locking posiiliiOl'l .aridv be'zheld. :there. by. a rotatable collar that is carried by the female member in a hole -in swhich the keyxis also carried.

.l' Eurther, it is -an-object to provide a movable collar or :member overlying the key: and-provided with .en eccentric .groove or; a groove oi varying epithxfor the purpose of: releasing the key when -it--:1s;:desired :to .uncouple the male: and female members.

':==Eurther, itis anobject in one embodiment of theginvention to provide means to limit thenrotationz-of the collar. and 'to' latch it in its keysholdingzposition.

Otherobjectswill-in partbe obvious andin part tie-pointed out hereinafter.

"17otheattainment of the aforesaid objects and ends the-invention stilt-further resides in the "noveldetailsof construction,- combination and arrangement of parts. all of which willbejfirst fully-described in the following detailed descrip- *tion. and then be particularly pointed out in the appended; claims,- reference being had to the accompan'ying drawingsrin which:

Fig. 1 is an elevation of one form of the invention.

Fig. 2 is a- Vertical longitudinal section of the same.

Fig. 3 is a cross section on line 3-3 of Fig. 2.

Fig. 4 is a side elevation of a modification.

Fig. 5 is a side elevation of another embodiment of the invention;

Fig. 6 is a central vertical longitudinal section of the same. v

Fig. 7 is a cross section Fig. 6.

Fig. 8 is a cross section Fig. .6.

Fig. 9 is a view'like Fig. 8, showing the parts locked tog-ether.

Fig. 10 is a side elevation ment of the invention.

on the line 1-1 of on the line 88 of Mare the;.,ma1e and female .nu lar groove: 3 -in =place-ofcthe key slot.

of another embodi Sl ng-(liaise. cross:section on the line .i li.i of

Fig. 10.

Fig. :12 is; vertical longitudinal section. onthe ;.line iii-+1.2 of Fig. 11'.

.Fig..x l3 is aside= elevationof a; further modi- .15

ficationrofthe:invention.

Misa crosshsection.v on the line M+M of "Fig:

Fig. '13.

Fig. 15 shows a modification of the embodiment "shoWn-in Figs. .13 and 14.

:I'n thedrawings, in which llkenumerals of ref erence indicate like part-sin all the figures, i and members respectively. The malelmember I has. a .-stop '2 and akeyslo't (preferably) rainenlargfiment-E on which the colla1':8;,,-is-mounted. The hey. 1'. lies :in :the slot B iThe' collarI t. has. a, cut away which stop 113351131175 to hold ';3,:whi1e the female inemherghas a key slot 6. andru lies a stopscrew :13 that. is 42. :threaded into, the enlargements; the .collarlhaving a. hump; ii 8:. over .thecollar in-the key-lockingiposition. (See'Figs.

.1, 2;..and. 4.)

ggAgfiange l2,.on-..the.- enlargement-; 5. cooperates. ,2,5

the .male. and female members are locked together both -,againstgswi;veling and; against m0- tion-ralong their axes. If it be desired that-the -,maie:inernber l swivelinthe f-em alememhert l,

the male member may: be; providedwith an an- In virtue of this constructionv when--memberleis inserted ,into: memberi-ei 1111131151101) 2 engages flan e .-er 0ve 3wi l;-reeiste w t k y. l zan by turning collar 8 to position shown in Fig. 4 the parts will be locked together'against being pulled apart, While allowing one to turn on its axis in the other. 1

With the parts held to present key 1 on top, the key will fall into slot 3, or if it be held below the axis, it will be forced to its locking position when collar 8 is turned because of the eccentric grooves peripheral Wall engaging the outer face of the key; 7 I

The construction. is also such that a smooth male member (one without slot 301' groove 3 can be held in the female member by the key, due to the wedging'action of theperipheral wall of groove H when collar 8 is turned to press key 1 inwardly. g

Referring now to Figs. 6 to 9 inclusive, wherein is shown how my invention'may be applied for coupling conduits:

in these figures those parts 56 the ring IS.

2 which correspond in function to similar parts in the preceding figures bear the same reference numbers plus the index letter 0. In the embodiment shown in these figures, the female member is a threaded coupling member 4 having a nut-like portion i5 to receive a wrench. The collar 8 also has flats IE to receive a wrench. In this case the collar has an eccentric groove l i into which the key 1 constantly projects, and thus the key keeps the collar in place. The collar, however (preferably at the deepest part of the groove I P) has a cut out portion i l which will pass the key i when it is desired to remove or assemble the collar from or on the female member 4.

In order to secure the male member I and the female member 4 together, it is only necessary to turn collar 8 in one direction or the other on member 4 to cause the eccentric groove ll to act and force key 5 tightly against member 1, friction then being suflicient to hold the parts together.

In Figs. 10 to 12, inclusive, is shown another modification of the invention. In these figures those parts which correspond to the similar parts in preceding figures bear the same reference number plus the index letter d. In this form the collar 8 is one which works by sliding back and forth axially. It has, preferably, a tapered surface 1 i which, when collar E is pushed forwardly by spring l8, serves to hold key (ball) I in recess 3 of rod i and, by sliding collar 3 back against spring-tension key i may be released from groove 3 and I pulled out.

A washer ll, held in place by a pin or screw 2 serves as an abutment for spring l8.

Figs. 13 and 14 show how my invention may be adapted as a nut lock. In these figures also those parts which correspond to similar parts in the other figures bear the same reference number, plus the index letter 2. In this case the castle nut 4 is grooved as at El and in the groove is fitted a split ring i5. Instead of using a cotter-pin to hold the nut from tuming, I use a straight pin 1 which passes through the hole 3 in the bolt and is held in place by The ring 29 may have a slightly depressed portion 26 to enter the slots G of the nut and hold the ring against accidental rotation on the nut. The ring also preferably knurled on its outer surface to facilitate turning it to bring the split in line with the key head so that the key may be withdrawn when it is desired to turn the nut.

The ring i9 may be made semi-rigid and of relatively heavy construction, as shown in Fig.

14, or it may be made of spring steel, as shown in Fig. 15. In this form the spring ring l9 has a curled end 21! to enter the slots 6 of the nut. In order to enable the ring l9 to be turned for releasing the key I a suitable pointed instrument may be inserted in the loop 20 and the loop lifted out of the slot 6 and the ring l9 turned as required.

I he uses to which the invention may be put are numerous, and I desire it to m understood that I do not wish to be limited to use on any particular male and female members.

From the foregoing description, taken in connection with the accompanying drawings, it is thought that the construction, operation and advantages of the invention will be clear to those skilled in the art.

What I claim is:

1. Means to hold male and female parts together, comprising in combination with engaging male and female elements, a locking key carried in an opening in said female element, said key and said opening having provisions to hold said key against longitudinal and transverse movements in said opening, and a shiftable band on said female element to overlie said key and having provisions to move said key to its looking position or permit release of the same, accordingly as said band is in one position or another, said band comprising a rotatable body with an internal annular eccentric groove into which said key constantly projects, and having a cut-away portion at one place to pass over said key in assembling or disassembling the parts.

2. In combination with a male and a female member, said female member having an opening, a locking key held in said opening against movement longitudinally and transversely of the opening, an inelastic ring rotatably mounted on said female member over said key and having an internal eccentric groove overlying said key and formed to project said key inwardly radially when said ring is in one position to engage with said male element and to release said key from engagement with the male element when said ring is in another position, and means to hold said ring against axial movement, said rings groove defining opposed internally projecting annular flanges to engage the ends of the key, one of said flanges having a slot to pass said key when lined up therewith to permit placing and removing said ring, said ring holding means being removable when it is desired to remove the ring from its key operating position. 5

CHARLES LEO -W'INGARD. 

